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Public water system record

Madisonville Light & Water

Serves an area of Hopkins County, KY that includes Madisonville and Hanson · 28,102 people served

Federal records show 4 health-based violations and 4 monitoring/reporting issues for Madisonville Light & Water in the last ten years. The most serious issue in this window was a resolved Revised Total Coliform Rule violation.

  • KY0540936
  • SEDALIA
  • KY
  • 28,102 served

System profile

Source water Surface water
ZIP 42508
EPA system ID KY0540936

Verify this system on EPA ECHO →

Health-based violations, last 10 years
4
Resolved
4
Unresolved
0
Any acute record
Yes
Monitoring issues, last 10 years
4

Key facts

  • Madisonville Light & Water draws water from 2 surface water intakes (1 of them for emergency, seasonal or other part-time use).
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit), 2017.
  • Most recent formal enforcement: compliance order with a penalty by Kentucky, December 2017.
  • Record on file since 1994, with 2 health-based violations before October 19, 2016.
  • Lead pipe inventory: 5 lead and 5,480 unknown out of 10,542 service lines.

Check whether Madisonville Light & Water serves your address

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Revised Total Coliform Rule
Contaminant limit exceeded
 110 Sep 1, 2021 Resolved Yes
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Apr 1, 2017 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Jan 1, 2017 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Oct 1, 2016 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Public Notice
OTHER
 Jul 19, 2018 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Apr 1, 2017 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Oct 1, 2016 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2016 Resolved

Full record since 1994

EPA's records for Madisonville Light & Water go back to 1994. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 12 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 4
2000s 0 3
2010 to October 18, 2016 2 5
October 19, 2016 to 2019 2 2
2020s 1 0

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began October 2016, Resolved.

Show all 2 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Oct 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Jul 1, 2016 Resolved

Enforcement actions

Kentucky regulators took 1 formal enforcement action against Madisonville Light & Water in 2017. The most recent was a compliance order with a penalty in December 2017.

Date By Action Violations covered
Dec 6, 2017 Kentucky Compliance order with a penalty 9 violations (4 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)

What the violations mean

Total Trihalomethanes (TTHMs)

3 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Revised Total Coliform Rule

1 incident

The system did not meet a requirement of the Revised Total Coliform Rule

Coliform and E. coli rules protect against bacteria in the distribution system

Where the water comes from

Madisonville Light & Water draws water from 2 surface water intakes (1 of them for emergency, seasonal or other part-time use). 4 other community water systems buy water from Madisonville Light & Water.

Community systems that buy water from it

Annual water quality report

Madisonville Light & Water must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Kentucky.

Certified drinking water labs by state EPA guidance for private wells